[PATCH] PCI: fix ptr_ret.cocci warnings

[kbuild test robot]

From: kbuild test robot <lkp@xxxxxxxxx>

drivers/pci/controller/pci-tegra.c:1365:1-3: WARNING: PTR_ERR_OR_ZERO can be used


 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Fixes: 191d6f91f283 ("PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist")
CC: Palmer Dabbelt <palmer@xxxxxxxxxx>
Signed-off-by: kbuild test robot <lkp@xxxxxxxxx>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   46cf053efec6a3a5f343fead837777efe8252a46
commit: 191d6f91f283dfb007499bb8529d54c3ac434bd7 PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist

 pci-tegra.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -1362,10 +1362,7 @@ static int tegra_pcie_resets_get(struct
 		return PTR_ERR(pcie->afi_rst);
 
 	pcie->pcie_xrst = devm_reset_control_get_exclusive(dev, "pcie_x");
-	if (IS_ERR(pcie->pcie_xrst))
-		return PTR_ERR(pcie->pcie_xrst);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(pcie->pcie_xrst);
 }
 
 static int tegra_pcie_phys_get_legacy(struct tegra_pcie *pcie)